ASTERFIX UNIVERSAL

Area of Use

ASTERFIX UNIVERSAL is a grey powder consisting of CEM II 42.5R cement, fine fraction quartz sand, fractioned additives, and cellulose. The adhesive is recommended for interior work, in rooms with increased humidity, with working temperatures between +5℃ and +25℃, protected from direct sunlight. ASTERFIX UNIVERSAL is recommended for facing with ceramic tiles and porcelain stoneware, decorative stone, small-format porcelain, polystyrene boards on mineral surfaces (concrete, plaster, etc.).

Surface Preparation

Ensure that the surface is straight, well cleaned of dust, dirt, paint, and grease stains. Apply a layer of Primer on hard surfaces (concrete, fortan, cement-based plaster), or BetonContact on gypsum board surfaces, AAC/ACC blocks, and polystyrene, etc. Apply the adhesive on both surfaces: the polystyrene/terracotta board and the surface where the polystyrene/terracotta will be applied. When using the adhesive for water-absorbing terracotta (clay-based or with clay additives), it must be soaked in a container with water for about 5 minutes, then removed before use.

Adhesive Preparation

The entire quantity of mixture intended for preparation is uniformly mixed in a container with water using a low-speed mixer, then left for 5-10 minutes to obtain a homogeneous mass, after which it is mixed again before use.

Mixing proportions:

• For walls: 0.2 liters of water per 1kg of dry mixture
• For floor: 0.25 liters of water per 1kg of dry mixture

Application Method

Perform work at temperatures between +5℃ and +25℃. Apply the adhesive uniformly on the prepared surface with the flat side of the notched metal trowel, then process with the notched side at a 90° angle. Place the polystyrene/terracotta board on the prepared mixture layer on the surface, then press it slowly with circular movements.

If the surface where the terracotta is applied has been treated with primer or betoncontact, its position can be adjusted for up to 20 minutes. Apply only the amount of material that can be tiled within the open bonding time.

The open bonding time may be reduced in conditions of high temperature or air currents. In this situation, when lightly touching the adhesive layer, it no longer sticks to the fingers, and a thin film forms on the material's surface. In this case, spread the adhesive again on the support and comb it again to break the formed film.

It is recommended to press the board firmly on the support and adjust it with slight lateral movements to ensure a minimum 75% contact with the support layer through the adhesive.

The prepared adhesive can be used for approximately 90-120 minutes. Use only clean vessels and tools.

Storage

Store the dry mixture in rooms with air humidity up to 60%, on wooden pallets, in undamaged bags.

Warranty Conditions

Shelf life - 12 months from the production date (indicated on the bag). The manufacturer is not responsible for exceptional cases when all the steps indicated above are not followed.